Schaeffler Technologies Ag & Co .kg

Peter Biegert

Marco Grethel

Peter Greb

Dominik Holl

The disclosure relates to a hydraulic system including a reversing pump which has two delivery connections via which a hydraulic medium can be delivered from a tank in opposite delivery directions in order to hydraulically actuate an actuating element and supply a cooling and/or lubricating system. The hydraulic system also includes a valve assembly via which an actuating piston in a double-acting actuating cylinder can be supplied with hydraulic medium. A first delivery connection of the reversing pump is fluidly connected to a first pressure connection of the double-acting actuating cylinder. A second delivery connection of the reversing pump is fluidly connected to a second pressure connection of the double-acting actuating cylinder. The actuating piston is mechanically coupled to a valve piston of a valve, and the valve piston is mechanically coupled to a locking device and to the actuating element.

Hydraulic system and method for operating a hydraulic system

The invention relates to a sensor unit for determining a rotor position of an electric motor, including at least one magnetic field sensor attached to a carrier element. In the case of a sensor unit, in which the sensor system can be easily exchanged, the carrier element is positioned in a sensor system housing which is open on one side and in which a sensing area of the at least one magnetic field sensor is directed in the direction of the open side of the sensor system housing.

Sensor unit for determining a rotor position of an electric motor and electric motor, preferably for a clutch actuator of a clutch actuation system of a motor vehicle

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Gengenbach, Germany

Peter Biegert